#645CA9#645CA9

#645CA9 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.8% C 0.119 H 286.2°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#645CA9
RGB	rgb(100, 92, 169)
HSL	hsl(246, 31%, 51%)
HSV	hsv(246, 46%, 66%)
CMYK	cmyk(40.8%, 45.6%, 0%, 33.7%)
CIE-LAB	lab(43.10, 22.70, -40.41)
CIE-LCH	lch(43.10, 46.35, 299.33°)
OKLab	oklab(51.85% 0.0332 -0.1141)
OKLCH	oklch(51.85% 0.119 286.2)
XYZ	xyz(16.2421, 13.2276, 39.2258)
Luminance	0.1323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#645CA9 #A1A95C

analogous

#5C7AA9 #645CA9 #8A5CA9

triadic

#645CA9 #A9645C #5CA964

tetradic

#645CA9 #A95C7A #A1A95C #5CA98A

square

#645CA9 #A95C7A #A1A95C #5CA98A

split-complementary

#645CA9 #A98A5C #7AA95C

monochromatic

#34305B #4B4583 #645CA9 #8A84BE #B0ACD3

Accessibility & contrast

On white

5.76

#645CA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#645CA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #645CA9

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##645CA9	#FFFFFF	#000000	##FFFFFF
##645CA9	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4068AC

Deuteranopia (green-blind)

#3E64A7

Tritanopia (blue-blind)

#506B7A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #645ca9;
/* rgb */ color: rgb(100, 92, 169);
/* oklch */ color: oklch(51.8% 0.119 286.2);

Tailwind

colors: {
  custom: {
    50: '#938ac3',
    500: '#645ca9',
    950: '#000000',
  },
}

SCSS

$custom: #645ca9;
$custom-light: #938ac3;
$custom-dark: #000000;

JSON

{
  "hex": "#645ca9",
  "rgb": {
    "r": 100,
    "g": 92,
    "b": 169
  },
  "hsl": {
    "h": 246.234,
    "s": 30.924,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5185,
    "c": 0.11887,
    "h": 286.2
  },
  "luminance": 0.13228
}

Semantic roles & 50–950 ramp

primary

#645CA9

secondary

#BEC19F

accent

#C761BC

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #645CA9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →